code: def test_timedelta_add_timestamp_interval(self, klass):
      delta = klass(0)
      expected = Interval(
          Timestamp("2020-01-01"), Timestamp("2020-02-01")
      )
  
      result = delta + expected
      assert result == expected
  
      result = expected + delta
      assert result == expected
  
file_path: pandas/pandas/tests/scalar/interval/test_arithmetic.py
imports: from datetime import timedelta
  import numpy
  import pytest
  from pandas import Interval, Timedelta, Timestamp
  import pandas._testing
label_desc: Use image node_id 8 for calling the TestIntervalArithmetic obj's underlying member method code with example usage: obj.test_timedelta_add_timestamp_interval(klass) without return types